Question

Write short note on combustion.
Write the features of good soap. give me correct answer. )))))))))))))))))))
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Answer 1

Explanation:

Combustion is a chemical process or a reaction between Fuel (Hydrocarbon) and Oxygen. When fuel and oxygen react it releases the heat and light energy. Heat and light energy then result in the flame. So, the formula for Combustion reaction is Hydrobcarbon + Oxygen = Heat energy

The Five Qualities of a Good Bar of Soap

Bubbly – this gives the soaps ability to lather.

Cleansing – the ability of the soap to trap the dirt on the skin and wash it away.

Hardness – the firmness of the soap bar.

Conditioning – the amount of moisture that is left on the skin.

Creamy – this measures the stability and creaminess of the soap lather

Answer 2

$\boxed{\large{\tt{ANSWER\::}}}}$

$\underline{\large{\pink{\mathcal{COMBUSTION\::}}}}$

The process of burning of carbon and it's compounds in excess of air (oxygen) to produce light, heat and carbon dioxide is called combustion.

$\underline{\underline{\bf{Example\::}}}}$

$\bullet\:\sf{C+O_2\longrightarrow CO_2 + Heat \:+\:Light}}\\\\\bullet\:\sf{CH_4+2O_2\longrightarrow CO_2+2H_2O+Heat+Light}}$

$\underline{\large{\pink{\mathcal{FEATURES\:OF\:GOOD\:SOAP\::}}}}$

• Soap should be smooth and soft.
• Soap should not be basic in nature.
• It should not contains more than 10% moisture.
• During use, soap should not be break.
• It should be completely soluble in alcohol.
• It should have disinfectants added to it.
• A good soap forms immediate and sufficient lather with soft water.